* {
    margin: 0px;
    padding: 0px;
}

div {
    /* border: 1px solid red; */
}

img {
    width: 100%;
    height: 100%;
}

.bigbox {
    width: 100%;
    height: 910px;
    background-repeat: no-repeat;
    background-size: 100%;
    position: absolute;
}

.neirong {
    border: 0px solid wheat;
}

.sji {
    width: 20vw;
    height: 75vh;
    margin-top: 110px;
    margin-left: 400px;
}

.neirong2 {
    width: 40vw;
    height: 50vh;
    margin-left: 800px;
    margin-top: -650px;
}

.logo {
    width: 5vw;
    height: 9vh;
    margin-left: 38%;
    margin-top: 15%;
}

.wengzi {
    width: 35vw;
    height: 13vh;
    margin-top: 25px;
}

.wengzi p {
    font-size: 45px;
    color: white;
    text-align: center;
}

.aniu {
    width: 20vw;
    height: 20vh;
    margin-top: 10px;
    margin-left: 150px;
    display: flex;
}

.aniu1 {
    width: 180px;
    margin-left: 25px;
    display: flex-end;
}

.aniu2 {
    width: 140px;
    margin-left: 10px;
    display: flex-end;
}

.AppStore,
.MacAppStore {
    width: 180px;
    height: 50px;
    margin-top: 25px;
}

.Android,
.Microsoft {
    width: 140px;
    height: 50px;
    margin-top: 25px;
}

.dibu {
    width: 100%;
    height: 30px;
    margin-top: 165px;
    text-align: center;
}

.dibu a {
    text-decoration: none;
    color: whitesmoke;
    margin-left: 30px;
}

.dibu p {
    text-decoration: none;
    color: whitesmoke;
    font-size: 10px;
    margin-top: 10px;
}